<template>
  <div class="auth-page">
    <div class="container page">
      <div class="row">

        <div class="col-md-6 offset-md-3 col-xs-12">
          <h1 class="text-xs-center">{{isLogin ? "Sign in" : "Sign up"}}</h1>
          <p class="text-xs-center">
            <!-- <a href="">Have an account?</a> -->
            <nuxt-link v-if="isLogin" to="register">Need an account?</nuxt-link>
            <nuxt-link v-else to="login">Have an account?</nuxt-link>
          </p>
          <ul class="error-messages">
            <template v-for="(messages, field) in errors">
              <li v-for="(message, index) in messages" :key="index">{{ field }} {{message}}</li>
            </template>
            
          </ul>

          <form @submit.prevent="onSubmit">
            <fieldset class="form-group" v-if="!isLogin">
              <input v-model="user.username" class="form-control form-control-lg" type="text" placeholder="Your Name">
            </fieldset>
            <fieldset class="form-group">
              <input v-model="user.email" class="form-control form-control-lg" type="email" placeholder="Email" required>
            </fieldset>
            <fieldset class="form-group">
              <input v-model="user.password" class="form-control form-control-lg" type="password" placeholder="Password" required minlength="8">
            </fieldset>
            <button class="btn btn-lg btn-primary pull-xs-right">
              {{isLogin ? "Sign in" : "Sign up"}}
            </button>
          </form>
        </div>

      </div>
    </div>
  </div>
</template>

<script>
import { login , register } from "@/api/user"
// 仅在客户端加载js-cookie加载
const Cookie = process.client ? require("js-cookie") : undefined

export default {
  middleware: "notAuthenticated",
  name: "loginPage",
  // 添加一个计算属性 区分登录和注册页
  computed: {
    isLogin(){
      console.log(this.$router.name);
      return this.$route.name === "login"
    }
  },
  data(){
    return {
      user:{
        username: "",
        email: "",
        password: ""
      },
      errors: {}  //错误信息
    }
  },
  methods:{
    async onSubmit(){
      try{
        // 提交表单请求登录
        const { data } = this.isLogin 
          ? await login({
              user: this.user
            })
          : await register({
              user: this.user
            })

        console.log(data)
        // 保存用户登陆状态
        this.$store.commit("setUser", data.user)
        // 为了防止刷新页面数据丢失 ，我们需要把数据持久化
        Cookie.set("user", data.user)


        // 跳转到首页
        this.$router.push("/")
      }catch(err){
        this.errors= err.response.data.errors;
        console.dir(err);
      }
      
    }
  }
}
</script>

<style>

</style>